
Role: Principal Backend Engineer
Primary Tech: Golang, Microservices, Distributed Systems
Work Mode: Hybrid (flexibility + collaboration)
We’re looking for someone who:
- Has deep experience in Golang and backend architecture
- Understands system design, scalability, and distributed systems
- Enjoys solving complex technical challenges in a high-impact environment

About Kredivo Group
About
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Who You Are:
- You’ve built scalable, production-ready APIs in fast-paced environments, and are comfortable with the challenges that come with a growing startup.
- You understand event-driven architectures and have hands-on experience building real-time applications.
- You are fully capable of taking ownership of backend systems, from designing the database schema to writing efficient, maintainable code.
- You think beyond the code: optimizing performance, scalability, and security are as important as building new features.
- You’re comfortable troubleshooting complex issues, whether that’s API bottlenecks, database performance, or production issues.
Responsibilities:
- Design, implement, and manage a NestJS backend with a modular, scalable architecture that can easily handle real-time events and communication.
- Develop and maintain WebSocket services for real-time event-driven updates and ensure seamless communication across the system.
- Integrate RabbitMQ for reliable internal messaging, handling queues and ensuring event-driven workflows are efficient and fault-tolerant.
- Implement database management strategies using MongoDB, Redis, and Elasticsearch, ensuring efficient data handling, indexing, and optimization.
- Integrate with external APIs (JSON-RPC, XML-RPC, REST) to enhance system capabilities.
- Ensure high performance of the system by optimizing database queries, implementing caching strategies using Redis, and ensuring optimal indexing and data flow.
- Implement role-based authentication and authorization mechanisms using JWT, OAuth, and RBAC patterns within NestJS.
- Follow security best practices to ensure sensitive data is protected, credentials are stored securely, and the system is resilient to common vulnerabilities.
- Work collaboratively with cross-functional teams to ensure seamless integration between different services and technologies.
Must-Have Skills:
- Strong proficiency in Node.js and NestJS with TypeScript.
- Solid experience with MongoDB, Redis, and Elasticsearch for data storage and real-time data handling.
- In-depth knowledge of WebSockets and Socket.IO in NestJS Gateways, enabling real-time communication and updates.
- Experience with RabbitMQ for message queuing and asynchronous task handling.
- Strong understanding of authentication & authorization systems using JWT, OAuth, and RBAC (Role-Based Access Control).
- Expertise in optimizing APIs, including techniques for caching, improving database performance, and reducing latency.
- Familiar with API security best practices, including secure storage of credentials, encryption, and safeguarding sensitive data.
Key Skills:
- TypeScript, NestJS, WebSockets, Socket.io
- Redis, MongoDB, Elasticsearch, RabbitMQ
- API Optimization, JWT, OAuth, RBAC
- Real-time communication, Event-driven architecture
Responsibilities:
Lead the design and development of sophisticated, high availability, and secured
server-side applications with a primary focus on Golang.
● Collaborate with cross-functional teams to understand requirements, architect
solutions, and deliver high-quality software products.
● Mentor and guide junior engineers, sharing your engineering expertise and best
practices to foster skill development within the team.
● Analyze and optimize performance, scalability, and reliability of existing Golang
applications, making strategic improvements where necessary.
● Design and implement automated unit and integration tests to ensure code quality,
maintainability, and stability.
● Stay up-to-date with the latest advancements in software technologies,
recommending their adoption when appropriate.
● Champion code reviews, architectural discussions, and technical documentation to
maintain high development standards.
● Troubleshoot and resolve complex issues, providing innovative solutions to overcome
challenges.
● Contribute to the recruitment and hiring process by participating in interviews,
evaluating candidates, and providing input on hiring decisions.
Requirements
Bachelor's or Master's degree in Computer Science, or a related field.
● 3+ years of experience in software development, with substantial experience in
Golang and cloud infrastructure.
● Expert-level proficiency in designing and developing high-performance, concurrent
applications with Golang.
● Experience with distributed systems, microservices architecture, and containerization
(e.g., Docker, Kubernetes).
● Solid knowledge of software testing methodologies and tools, including unit testing
and integration testing for Golang applications.
● Demonstrated ability to lead projects, collaborate effectively with teams, and mentor
junior engineers.
● Excellent problem-solving and analytical skills, with the ability to tackle complex
technical challenges.
● Having prior experience in the FinTech domain would be an added advantage.
Only 10% of India speaks English and 90% speak over 25 languages and 1000s of dialects. The internet has largely been in English. A good part of India is now getting internet connectivity thanks to cheap smartphones and Jio. The non-english speaking internet users will balloon to about 600 million users out of the total 750 million internet users in India by 2020. This will make the vernacular segment one of the largest segments in the world - almost 2x the size of the US population. The vernacular segment has very few products that they can use on the internet. One big need is that of sharing thoughts. Twitter serves this need globally through a micro-blogging platform. However most of the Tweets are in English and the vernacular Indian feels out of place on it. To solve that problem, we started Koo.
About The Company
The app is a micro-blogging platform in Indian languages. It is an app built in India, for Indians, to share their thoughts and opinions on any topic in their mother tongue using Audio/Video/Text. Koo gives a voice to Indians and enables the “Best of India” to share their thoughts with the “Rest of India”. We provide a personalised feed to users by letting people select the people they want to follow. The user is then shown content from these people. Some of the top minds of India are invited to share their thoughts and opinions on various topics. Users can follow such personalities and follow what they are talking about, and share their opinions too.
We are a Series A venture funded company. It has raised $6.5 million from stellar investors like Accel Partners, Shunwei Capital, Kalaari Capital, 500startups and Blume Venture Partners.
Technology Team & Culture
Nishant (CTO), has headed engineering for large and complex platforms like Coverfox and CitrusPay catering to the needs of millions of consumers. Technology team comprises sharp coders, technology geeks and guys who have tried entrepreneurship or are very entrepreneurial in nature and extremely passionate towards technology. Anyone being part of a technology team will have a lot to learn from their peers and mentors. Download our android app nearing 1 million downloads from play store and take a look at what we are trying to build. Technology stack compromises of a wide variety of cutting edge technologies like Elixir, Java 11, Reactive Programming, MongoDB, Neo4j, Kubernetes, AWS, NodeJS, Python, ReactJS, Redis, Aerospike, ML, Deep learning etc. Working hard & party harder is the mantra that we believe in.
Technology skill sets required for a matching profile
1. Work experience between 2 years to 8 years in building large scale high user traffic consumer facing applications with desire to work in a fast paced startup.
2. Knowledge on reactive and asynchronous programming is preferable. If you have worked with coroutines, goroutines, high concurrency or optimized number of threads for processing on your backend server you could be a good fit.
3. Extremely proficient at writing performant, scalable and production ready code in Kotlin, Java (8 or above, comfortable with concepts like lambda, streams, multithreading etc), Elixir, Rust, or Golang. Should be familiar with static code analysis, code coverage and code reviews.
4. Experience with NoSQL DBs like MongoDB, Cassandra, Redis or Aerospike is required.
Knowledge of graph DBs like Neo4j is preferred.
5. Strong in algorithms, problem solving and data structures.
6. Knowledge of TDD and experience with building applications integrated with CI-CD pipelines (automated build, tests and deployments).
7. Exposure to micro-services with good understanding of containers, kubernetes, logging, alerting and monitoring. Inter services communication. Should know how to handle multiple versions of APIs.
Strong skills in Go language
Design, develop and support real time data monitoring application and a dashboard for a VoIP network
Roles and Responsibilities:
- Design, build and maintain efficient, reusable, and reliable Ruby code
- Ensure the best possible performance, quality, and responsiveness of the applications
- Identify bottlenecks and bugs, and devise solutions to these problems
Required Skills:
- 3+ yrs of experience developing Ruby applications on Linux platform with exposure to HTML, CSS and javascripts
- Solid understanding of object-oriented programming
- Experience with any one NoSQL solution like Redis, MongoDB, CouchDB is a must
- Deep understanding of high traffic, highly scalable, complex web applications
- Ability to work in a dev-automation environment with some source control, continuous integration/delivery systems
- Good problem solving/analytical skills
- Excellent written and verbal communication
Preferred Skills:
- Conversant with Elasticsearch, Neo4j and D3.js
- Inclination to GO programming
- Experience working with open source projects
Backend/Fullstack Developer
About the Company:
Company is India’s largest and best-established digital wealth management service that helps its customers create wealth for their long-and-short-term goals. Founded in 2012, Company is a pioneer in the digital financial services category and is recognised for creating simple and elegant user experiences in a complex domain. We do this by simplifying complex investing concepts and automating best practices, so our customers can grow their wealth without worry. We achieve this by combining cutting-edge technology, data-driven algorithms, awesome UX and friendly customer support. Our task is ambitious and we like to work hard as well as smart. We want to build a team that relishes challenges and contributes to a new way of thinking and investing in India. We are also invested in the growth of our colleagues and providing a supportive and thriving working environment for everyone. We have been recognised by Great Place To Work® as one of India’s best companies to work for.
Role specific info:
- 4-12 years of experience building good quality production software
- Excellent knowledge of at least one ecosystem based on Elixir/Phoenix, Ruby/Rails, Python/Django, Go/Scala/Clojure
- Good OO skills, including strong design patterns knowledge
- Familiar with datastores like MySQL, PostgreSQL, Redis, Redshift etc.
- Familiarity with react.js/react-native, vue.js etc. • Knowledge of deploying software to AWS, GCP, Azure
- Knowledge of software best practices, like Test-Driven Development (TDD) and Continuous Integration (CI)
What would you do here:
- Writing quality code using language best practices.
- Working in a highly collaborative team.
- Building good software using the latest tools and techniques.
- Participating in design reviews, coding modules, code reviews and unit testing.
- Taking ownership of quality and usability of your code.
- Mentoring co-workers.
- Leading efforts in improving technology architecture.
Job Description
Must have Skill Sets
- Go lang + Microservices
- Familiarity with MAC/Linux environment, Shell script
- GRPC ● JavaScript & JSON
- Knowledge of microservices and architecture
- Knowledge of Uber Tech Stack would be a bonus ○ Will ensure candidate who are selected will undergo training on Uber Stack as a part of their induction to Uber
- Basic SQL knowledge
Expectations from the candidate
- Strong hands-on experience in understanding requirements and creating microservices using Go lang..
- Exceptional debugging and problem-solving skills on large codebase
- Be a proactive thinker and demonstrate keen sense to find solutions to challenging problems
- Product sense: Create more than beautiful code. Play a crucial role in choosing what we build and how we build it.
- A penchant for collaboration & a team player: Work cross collaboratively to drive impact across orgs. Be open to candid feedback for improvement. When required step up to the role of a tech-lead to ensure effective coordination and communication
- Independent to explore all the end points in UBER environment and coordinate with different Line of Business to understand the correct microservice for a business use case.
- Ability to convert a high-level PRD into a detailed ERD for execution. Coordinate with business teams to understand the functional requirement and convert it into engineering logic
Primary Skills :
4+ Years with Java
2+ with Microservices
6 months to 1 Year with Golang
Exp : 4+ Years
Location : Bangalore/Hyderabad
Max Budget : 28 Lakhs
End Client : UBER
It is India’s only B2B Construction Materials Supply Chain Company. Construction & Infrastructure is one of the industries, with the most complex problems in Supply Chain and we are fundamentally reengineering the way construction materials get procured. Our Clients include the biggest names in India & the World– The LafargeHolcim Group, JSW Group, The Tatas and many others. We are backed by some of the world’s top marquee funds in our journey to create transparency and standardization to an otherwise opaque industry.
Your responsibilities:
- Understand the business context and build high quality code using proven design patterns Develop, test and deploy integrations required to meet business requirements
- Carry out unit tests and other quality control mechanisms to inform and validate the code and design
- Utilizing and monitoring cloud infrastructure resources (such as AWS, Azure) efficiently
- Participate in a highly fluid environment applying agile software development principles
- Ensure the coding standards are on-par with the best in the industry
Educational Qualifications:
- Bachelor's or Master’s degree in a quantitative field (e.g. Mathematics, Engineering, Computer Science).
Must have skills:
- 3+ years of work experience with mobile/web development
- Experience in working with either of languages: Go, Java, Scala
- Strong understanding of relational and non-relational databases (MySQL, PostgreSQL, MongoDB, Cassandra)
- Strong understanding of Message brokers
- Must have hands on experience in Restful APIs
- Must have a strong foundation of Data structures and Algorithms
- Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems
- Ability to deploy features on a daily basis: should be good at time management and prioritization
- Hands-on experience in CI/CD principles and TDD
- Strong written and verbal English communication skills
Good to have skills:
- Experience in event-driven & asynchronous I/O frameworks
- Exposure to business process and workflow automation
- Working experience in process driven and data intensive business applications
- Experience in working on web infrastructure with React.js and React Native
Professional traits:
- Self-motivated, persistent and “Never Give Up” attitude
- Passion for innovation and adaptability to a lean startup culture
- Ability to work with minimal supervision, independently and / or as a member of a team
- Giving full attention to what other people are saying, taking time to understand the points being made, asking questions as appropriate








